Electrically operated window regulator



Aug. 22, 1944.

E. 1.. ACKERMAN ETAL 2,356,642

ELECTRICALLY OPERATED WINDOW REGULATOR I Filed Jan. 17, 1942 Patented Aug. 22, 1944 ELECTRICALLY OPERATED WlND'OW REGULATOR Edward L. Ackerman and'Albcrt V. Cruinp, Detroit, Mich., assignors to Ackerman-Blaesser- Fezzey, Inc., Detroit, Mich, a corporation of 7 Michigan Application .lanliary'17, 1942,-Serial No. 427,128 v 3 Claims. (01. 268-124) This invention relates to window regulators, the object being to provide an electrically operated window regulator utilizing a reversible electric motor for raising or lowering'a glass or sash in respect to the window opening in an automobile or other inclosure.

The principal feature and object of the invention resides in the provision of crossed arms in a pivotal relation having a counterbalancing spring and a slidable bar to the end of which a pin is i secured to one of the arms at the crossed point and the other arm is in a rotatable relation therewith. A screw is attached to the bar, a worm gear and nut thereon is positioned in the sash recess and a worm is provided on the motor shaftfor- Fig. 2 is a vertical section taken on line 22 of I Fig. 1.

Fig. 3 is a sectional elevation taken on line 3'3 of Fig. 1.

In the preferred form of the invention, here shown, the window regulator and the motor for operating the same is mounted within the sash recess or pocket below the window opening, the

opposed vertical edges of which opening being indicated at l and 2. edges of the window opening are mounted the guide channels '3 and 4 which extend into the sash recess or pocket 5.

In the sash pocket is mounted a plate 6 and to this plate is secured a base plate I having at its respective opposite vertical edges raised flanges 8 and 9 on each of which is threaded lugs H! to receive bolts for securing the same to the plate 6. The base plate I is provided with a recessed body in which a slide ll rides and a cover plate I2 is provided having a similar recessed portion, which together with the recessed portion of the plate 1, support the slide II and restrictsmovement thereof to a vertical plane. The flanges B and 9 are secured to the plate 6.

The crossed arms l3 and I4 have at their respective upper long ends links l5 and 16 which are each pivoted to the respective ends of the arms and at the opposite end to brackets I! which are secured to a glass receiving channel l8 se- On the opposite vertical 1 commonly known electric circuit cured to the lower edge of the glass IS. The short ends of the arms l3 and 14 are each respectively pivot-ally secured to links 20 for thearm l3 and 2| for the arm l4 and these links are inturn pivotally supported at the respective opposite ends to the plate 1. Through longitudinal movement ofthe bar I l by the screw 22, the arms are movable from the position shown in full lines in Fig. 1 to the position shown by dotted lines therein thus moving the glass from the closed position downwardly to the open position. The glass may be partially moved in either direction to vary the degree to which the window is opened to provide for desired ventilation of the automobile body.

For the movement of the bar H I provide the screw 22 which is non-rotatably fixed at its. upper end to the lower end of the bar H and extends through a revolvable nut 23 held from longitudinal movement on the screw by the ears '24 and 25 which may be struck outwardly from the plate 26 which is secured ,to the supporting plate 6 as by screws 21 extending through lugs 28 and into the supporting plate 6.

There is a Worm 29 on the shaft 39 of the reversible motor 3|. The worm is held from longitudinal movement on the shaft 30 by elements to and 4! and meshes with a worm wheel 32. Rotation of the shaft 30 in either direction by the motor turns the worm wheel and the nut 23 and causes the screw shaft v22 to move longitudinally in one direction or the other to correspondingly move the glass relative. to the window opening. 7

As heretofore stated the motor, is preferably of the reversible type and is connected with .a (not here shown) to cause rotation of the motor and .the

shaft 30 in one direction or the other as may .be" desired.

It will be understood from Fig. 2 that the motor is secured to the inner wall of the sash pocket and extends outwardly therefrom to a position required to properly position the worm 29 in mesh with the toothed periphery of the worm wheel 32.

From the foregoing it will be understood that the degree of movement of the glass or sash is determined by the period that current is applied to the motor to cause rotation of the worm in a right or left hand direction and in so doing cause the worm to move longitudinally through the nut 23 and held from longitudinal displacement by the ears 24 and 25. The bar II is thus movable longitudinally to bring the crossed arms from the full line position to the dotted line position shown the glass as the screw 22 cannot be moved through the nut which is held from rotation due to theworm wheel being held from rotation by the;

worm when the motor is not energized. i,

From the foregoing description it is believed evident that the various features and objects or the invention are attained by the structure and arrangement of parts hereinbefore described and that various changes and modifications may be made without departing from the spirit and scope of the invention as set forth in the,appended claims.

' Having thus fully described our invention, its utility and mode of operation, what we claim and desire to secure by Letters Patent of the United States is:

1. Window regulator mechanism for moving a sash or glass in respect to an opening in an inclosure having inner and outer walls providing a recess for the glass therebetween, said mechanism comprising a supporting plate positioned in the recess, a second plate secured to the supporting plate, a member slidably supported by the second plate, a pair of crossed arms having the longer ends thereof swingably connected with the glas or sash and being pivotally supported at the crossing point by the slidable member, a pair of links each respectively pivoted at one end to the shorter ends of the said crossed arms and pivoted at the opposite ends to the second plate, a screw attached to the slidable member opposite the end to which the crossed arm are supported, a nut, a third plate secured to the supporting plate below said second plate and having ears between which the nut is positioned and held from movement longitudinally 'of the screw, a worm wheel in which the nut is centrally positioned, a worm meshing with the ,worm wheel, a reversible electric motor having a shaft for the worm, an electric circuit for the slidable element, a screw shaft attached to the' -.slidab1e element, and means for causing move- 7 ment of the screw shaft and the slidable element comprising a worm wheel having a nut for the screw shaft whereby rotation of the worm wheel in one direction or the other correspondingly moves the screw shaft and slidable element to turn the arms on the pivot to raise or lower the isash or glass, a worm for the worm wheel, a re- 'said motor, and a switch for controlling the application of current to the motor to cause rotation thereof in one direction or the other to move the slide and raise or lower the sash in respect to the window opening depending upon the direction of rotation of the motor.

2. Mechanism for moving a sash or glass in respect to a window opening in the body of an automotive vehicle havin spaced inner and outer walls providing a sash recess below the window opening, a plate secured in the recess intermediate the inner and outer wall thereof and versible electric motor mounted on the inner wall of the recess and having a shaft substantially in the. plane of the plate to which the worm wheelis attached, a motor. circuit, and a manual switchin means in the motor circuit to cause rotation of the shaft and worm in one direction or the other to thereby turn the arms on the pivot and correspondingly raise or lower the shaft. v

.3. In mechanism for moving a glass or sash in respect to a window opening in the body of an automotive vehicle having spaced inner and outer walls providing a sash recess below the window opening, an apertured plate secured in the-recess intermediate the inner and outer walls in position to permit the sash or glass to pass between the plate and the-outer wall of the recess, a window regulator mechanism supported on the outer face of the plate including crossed arms in pivotal relation and operatively connected with the sash, and means for turning the arms on the pivot to raise or lower the sash or "glass, said' means including a slidable element relative to which the arms are pivotally associated at the crossed'point, and means for sliding the'said element in one direction or the other to raise or lower the sash comprising a reversible electric motor mounted on the inner wall of the sash recess and extending through an aperture of the plate, said motor including a shaft; means between the shaft and the sliding element whereby operation of the motor may move the slidin element, a support fo-rthe said means carried'by the apertured plate, and an electric circuit and switching means therein for causing rotation of the motor in one direction or the other to" correspondingly turn the arms onthe pivot tomove the sash toward or from closed position. EDWARD L. ACKERMAN. ALBERT V. CRUMP. 

